Physical description for original version: vii, 127 p. : 28 cm
書誌注記
Includes bibliographical references
原資料等に関する注記
原資料の出版事項: Rockville, MD (2101 East Jefferson Street, Rockville 20852) : U.S. Dept. of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research, [1996]